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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> *  Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *  contributor license agreements.  See the NOTICE file distributed with</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *  this work for additional information regarding copyright ownership.</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *  The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *  (the "License"); you may not use this file except in compliance with</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> *  the License.  You may obtain a copy of the License at</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing, software</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> *  distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> *  See the License for the specific language governing permissions and</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> *  limitations under the License.</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> */</em>
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">package</strong> java.net;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> com.google.gwt.core.client.GWT;
<a name="22" href="#22">22</a>  
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.io.Serializable;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.util.Enumeration;
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <em class="jxr_javadoccomment">/**</em>
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment"> * The Internet Protocol (IP) address class. This class encapsulates an IP</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * address and provides name and reverse name resolution functions. The address</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> * is stored in network order, but as a signed (rather than unsigned) integer.</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> */</em>
<a name="32" href="#32">32</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../java/net/InetAddress.html">InetAddress</a> <strong class="jxr_keyword">extends</strong> Object implements Serializable {
<a name="33" href="#33">33</a>  
<a name="34" href="#34">34</a>  	<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] any_bytes = { 0, 0, 0, 0 };
<a name="35" href="#35">35</a>  
<a name="36" href="#36">36</a>  	<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] localhost_bytes = { 127, 0, 0, 1 };
<a name="37" href="#37">37</a>  
<a name="38" href="#38">38</a>  	<em class="jxr_comment">//static InetAddress ANY = new Inet4Address(any_bytes);</em>
<a name="39" href="#39">39</a>      
<a name="40" href="#40">40</a>  	<em class="jxr_comment">//final static InetAddress LOOPBACK = new Inet4Address(localhost_bytes, "localhost");</em>
<a name="41" href="#41">41</a>      
<a name="42" href="#42">42</a>  	<strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = 3286316764910316507L;
<a name="43" href="#43">43</a>  
<a name="44" href="#44">44</a>  	String hostName;
<a name="45" href="#45">45</a>  	
<a name="46" href="#46">46</a>  	<strong class="jxr_keyword">int</strong> family = 2;
<a name="47" href="#47">47</a>  
<a name="48" href="#48">48</a>  	byte[] ipaddress;
<a name="49" href="#49">49</a>  
<a name="50" href="#50">50</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="51" href="#51">51</a>  <em class="jxr_javadoccomment">	 * Constructs an InetAddress.</em>
<a name="52" href="#52">52</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="53" href="#53">53</a>  	InetAddress() {
<a name="54" href="#54">54</a>  		<strong class="jxr_keyword">super</strong>();
<a name="55" href="#55">55</a>  	}
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="58" href="#58">58</a>  <em class="jxr_javadoccomment">	 * Constructs an InetAddress, representing the &lt;code&gt;address&lt;/code&gt; and</em>
<a name="59" href="#59">59</a>  <em class="jxr_javadoccomment">	 * &lt;code&gt;hostName&lt;/code&gt;.</em>
<a name="60" href="#60">60</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="61" href="#61">61</a>  <em class="jxr_javadoccomment">	 * @param address</em>
<a name="62" href="#62">62</a>  <em class="jxr_javadoccomment">	 *            network address</em>
<a name="63" href="#63">63</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="64" href="#64">64</a>  	InetAddress(byte[] address) {
<a name="65" href="#65">65</a>  		<strong class="jxr_keyword">super</strong>();
<a name="66" href="#66">66</a>  		<strong class="jxr_keyword">this</strong>.ipaddress = address;
<a name="67" href="#67">67</a>  	}
<a name="68" href="#68">68</a>  
<a name="69" href="#69">69</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="70" href="#70">70</a>  <em class="jxr_javadoccomment">	 * Constructs an InetAddress, representing the &lt;code&gt;address&lt;/code&gt; and</em>
<a name="71" href="#71">71</a>  <em class="jxr_javadoccomment">	 * &lt;code&gt;hostName&lt;/code&gt;.</em>
<a name="72" href="#72">72</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="73" href="#73">73</a>  <em class="jxr_javadoccomment">	 * @param address</em>
<a name="74" href="#74">74</a>  <em class="jxr_javadoccomment">	 *            network address</em>
<a name="75" href="#75">75</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="76" href="#76">76</a>  	InetAddress(byte[] address, String hostName) {
<a name="77" href="#77">77</a>  		<strong class="jxr_keyword">super</strong>();
<a name="78" href="#78">78</a>  		<strong class="jxr_keyword">this</strong>.ipaddress = address;
<a name="79" href="#79">79</a>  		<strong class="jxr_keyword">this</strong>.hostName = hostName;
<a name="80" href="#80">80</a>  	}
<a name="81" href="#81">81</a>  
<a name="82" href="#82">82</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="83" href="#83">83</a>  <em class="jxr_javadoccomment">	 * Compares this &lt;code&gt;InetAddress&lt;/code&gt; against the specified object.</em>
<a name="84" href="#84">84</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="85" href="#85">85</a>  <em class="jxr_javadoccomment">	 * @param obj</em>
<a name="86" href="#86">86</a>  <em class="jxr_javadoccomment">	 *            the object to be tested for equality</em>
<a name="87" href="#87">87</a>  <em class="jxr_javadoccomment">	 * @return boolean true, if the objects are equal</em>
<a name="88" href="#88">88</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="89" href="#89">89</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object obj) {
<a name="90" href="#90">90</a>  		<strong class="jxr_keyword">if</strong> (obj == <strong class="jxr_keyword">null</strong>) {
<a name="91" href="#91">91</a>  			<strong class="jxr_keyword">return</strong> false;
<a name="92" href="#92">92</a>  		}
<a name="93" href="#93">93</a>  		<strong class="jxr_keyword">if</strong> (GWT.getTypeName(obj) != GWT.getTypeName(<strong class="jxr_keyword">this</strong>)) {
<a name="94" href="#94">94</a>  			<strong class="jxr_keyword">return</strong> false;
<a name="95" href="#95">95</a>  		}
<a name="96" href="#96">96</a>  
<a name="97" href="#97">97</a>  		<em class="jxr_comment">// now check if their byte arrays match...</em>
<a name="98" href="#98">98</a>  		byte[] objIPaddress = ((InetAddress) obj).ipaddress;
<a name="99" href="#99">99</a>  		<strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; objIPaddress.length; i++) {
<a name="100" href="#100">100</a> 			<strong class="jxr_keyword">if</strong> (objIPaddress[i] != <strong class="jxr_keyword">this</strong>.ipaddress[i]) {
<a name="101" href="#101">101</a>                 <strong class="jxr_keyword">return</strong> false;
<a name="102" href="#102">102</a>             }
<a name="103" href="#103">103</a> 		}
<a name="104" href="#104">104</a> 		<strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="105" href="#105">105</a> 	}
<a name="106" href="#106">106</a> 
<a name="107" href="#107">107</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="108" href="#108">108</a> <em class="jxr_javadoccomment">	 * Returns the IP address of this &lt;code&gt;InetAddress&lt;/code&gt; as an array.</em>
<a name="109" href="#109">109</a> <em class="jxr_javadoccomment">	 * The elements are in network order (the highest order address byte is in</em>
<a name="110" href="#110">110</a> <em class="jxr_javadoccomment">	 * the zero-th element).</em>
<a name="111" href="#111">111</a> <em class="jxr_javadoccomment">	 * </em>
<a name="112" href="#112">112</a> <em class="jxr_javadoccomment">	 * @return byte[] the address as a byte array</em>
<a name="113" href="#113">113</a> <em class="jxr_javadoccomment">	 */</em>
<a name="114" href="#114">114</a> 	<strong class="jxr_keyword">public</strong> byte[] getAddress() {
<a name="115" href="#115">115</a> 		<strong class="jxr_keyword">return</strong> ipaddress;
<a name="116" href="#116">116</a> 	}
<a name="117" href="#117">117</a> 
<a name="118" href="#118">118</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="119" href="#119">119</a> <em class="jxr_javadoccomment">	 * Answer the IP addresses of a named host. The host name may either be a</em>
<a name="120" href="#120">120</a> <em class="jxr_javadoccomment">	 * machine name or a dotted string IP address. If the host name is empty or</em>
<a name="121" href="#121">121</a> <em class="jxr_javadoccomment">	 * null, an UnknownHostException is thrown. If the host name is a dotted IP</em>
<a name="122" href="#122">122</a> <em class="jxr_javadoccomment">	 * string, an array with the corresponding single InetAddress is returned.</em>
<a name="123" href="#123">123</a> <em class="jxr_javadoccomment">	 * </em>
<a name="124" href="#124">124</a> <em class="jxr_javadoccomment">	 * @param host</em>
<a name="125" href="#125">125</a> <em class="jxr_javadoccomment">	 *            the hostName to be resolved to an address</em>
<a name="126" href="#126">126</a> <em class="jxr_javadoccomment">	 * </em>
<a name="127" href="#127">127</a> <em class="jxr_javadoccomment">	 * @return InetAddress[] an array of addresses for the host</em>
<a name="128" href="#128">128</a> <em class="jxr_javadoccomment">	 * @throws UnknownHostException</em>
<a name="129" href="#129">129</a> <em class="jxr_javadoccomment">	 *             if the address lookup fails</em>
<a name="130" href="#130">130</a> <em class="jxr_javadoccomment">	 */</em>
<a name="131" href="#131">131</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/net/InetAddress.html">InetAddress</a>[] getAllByName(String host)
<a name="132" href="#132">132</a>             <strong class="jxr_keyword">throws</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a> {
<a name="133" href="#133">133</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a>(host);
<a name="134" href="#134">134</a>     }
<a name="135" href="#135">135</a> 
<a name="136" href="#136">136</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="137" href="#137">137</a> <em class="jxr_javadoccomment">	 * Answers the address of a host, given a host string name. The host string</em>
<a name="138" href="#138">138</a> <em class="jxr_javadoccomment">	 * may be either a machine name or a dotted string IP address. If the</em>
<a name="139" href="#139">139</a> <em class="jxr_javadoccomment">	 * latter, the hostName field will be determined upon demand.</em>
<a name="140" href="#140">140</a> <em class="jxr_javadoccomment">	 * </em>
<a name="141" href="#141">141</a> <em class="jxr_javadoccomment">	 * @param host</em>
<a name="142" href="#142">142</a> <em class="jxr_javadoccomment">	 *            the hostName to be resolved to an address</em>
<a name="143" href="#143">143</a> <em class="jxr_javadoccomment">	 * @return InetAddress the InetAddress representing the host</em>
<a name="144" href="#144">144</a> <em class="jxr_javadoccomment">	 * </em>
<a name="145" href="#145">145</a> <em class="jxr_javadoccomment">	 * @throws UnknownHostException</em>
<a name="146" href="#146">146</a> <em class="jxr_javadoccomment">	 *             if the address lookup fails</em>
<a name="147" href="#147">147</a> <em class="jxr_javadoccomment">	 */</em>
<a name="148" href="#148">148</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/net/InetAddress.html">InetAddress</a> getByName(String host)
<a name="149" href="#149">149</a> 			<strong class="jxr_keyword">throws</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a> {
<a name="150" href="#150">150</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a>(host);
<a name="151" href="#151">151</a> 	}
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="154" href="#154">154</a> <em class="jxr_javadoccomment">	 * Answer the dotted string IP address representing this address.</em>
<a name="155" href="#155">155</a> <em class="jxr_javadoccomment">	 * </em>
<a name="156" href="#156">156</a> <em class="jxr_javadoccomment">	 * @return String the corresponding dotted string IP address</em>
<a name="157" href="#157">157</a> <em class="jxr_javadoccomment">	 */</em>
<a name="158" href="#158">158</a> 	<strong class="jxr_keyword">public</strong> String getHostAddress() {
<a name="159" href="#159">159</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="160" href="#160">160</a> 	}
<a name="161" href="#161">161</a> 
<a name="162" href="#162">162</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="163" href="#163">163</a> <em class="jxr_javadoccomment">	 * Answer the host name.</em>
<a name="164" href="#164">164</a> <em class="jxr_javadoccomment">	 * </em>
<a name="165" href="#165">165</a> <em class="jxr_javadoccomment">	 * @return String the corresponding string name</em>
<a name="166" href="#166">166</a> <em class="jxr_javadoccomment">	 */</em>
<a name="167" href="#167">167</a> 	<strong class="jxr_keyword">public</strong> String getHostName() {
<a name="168" href="#168">168</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="169" href="#169">169</a>     }
<a name="170" href="#170">170</a> 
<a name="171" href="#171">171</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="172" href="#172">172</a> <em class="jxr_javadoccomment">	 * Answers canonical name for the host associated with the internet address</em>
<a name="173" href="#173">173</a> <em class="jxr_javadoccomment">	 * </em>
<a name="174" href="#174">174</a> <em class="jxr_javadoccomment">	 * @return String string containing the host name</em>
<a name="175" href="#175">175</a> <em class="jxr_javadoccomment">	 */</em>
<a name="176" href="#176">176</a> 	<strong class="jxr_keyword">public</strong> String getCanonicalHostName() {
<a name="177" href="#177">177</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="178" href="#178">178</a>     }
<a name="179" href="#179">179</a> 
<a name="180" href="#180">180</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="181" href="#181">181</a> <em class="jxr_javadoccomment">	 * Answer the local host, if allowed by the security policy. Otherwise,</em>
<a name="182" href="#182">182</a> <em class="jxr_javadoccomment">	 * answer the loopback address which allows this machine to be contacted.</em>
<a name="183" href="#183">183</a> <em class="jxr_javadoccomment">	 * </em>
<a name="184" href="#184">184</a> <em class="jxr_javadoccomment">	 * @return InetAddress the InetAddress representing the local host</em>
<a name="185" href="#185">185</a> <em class="jxr_javadoccomment">	 * @throws UnknownHostException</em>
<a name="186" href="#186">186</a> <em class="jxr_javadoccomment">	 *             if the address lookup fails</em>
<a name="187" href="#187">187</a> <em class="jxr_javadoccomment">	 */</em>
<a name="188" href="#188">188</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/net/InetAddress.html">InetAddress</a> getLocalHost() <strong class="jxr_keyword">throws</strong> UnknownHostException {
<a name="189" href="#189">189</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="190" href="#190">190</a> 	}
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="193" href="#193">193</a> <em class="jxr_javadoccomment">	 * Answer true if the InetAddress is an IP multicast address.</em>
<a name="194" href="#194">194</a> <em class="jxr_javadoccomment">	 * </em>
<a name="195" href="#195">195</a> <em class="jxr_javadoccomment">	 * @return boolean true, if the address is in the multicast group</em>
<a name="196" href="#196">196</a> <em class="jxr_javadoccomment">	 */</em>
<a name="197" href="#197">197</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMulticastAddress() {
<a name="198" href="#198">198</a> 		<strong class="jxr_keyword">return</strong> ((ipaddress[0] &amp; 255) &gt;&gt;&gt; 4) == 0xE;
<a name="199" href="#199">199</a> 	}
<a name="200" href="#200">200</a> 
<a name="201" href="#201">201</a>     <strong class="jxr_keyword">public</strong> String toString() {
<a name="202" href="#202">202</a> 		<strong class="jxr_keyword">return</strong> (hostName == <strong class="jxr_keyword">null</strong> ? <span class="jxr_string">""</span> : hostName) + <span class="jxr_string">"/"</span> + getHostAddress();
<a name="203" href="#203">203</a> 	}
<a name="204" href="#204">204</a> 
<a name="205" href="#205">205</a> 
<a name="206" href="#206">206</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="207" href="#207">207</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a link local address.</em>
<a name="208" href="#208">208</a> <em class="jxr_javadoccomment">	 * </em>
<a name="209" href="#209">209</a> <em class="jxr_javadoccomment">	 * Valid IPv6 link local addresses are FE80::0 through to</em>
<a name="210" href="#210">210</a> <em class="jxr_javadoccomment">	 * FEBF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF</em>
<a name="211" href="#211">211</a> <em class="jxr_javadoccomment">	 * </em>
<a name="212" href="#212">212</a> <em class="jxr_javadoccomment">	 * There are no valid IPv4 link local addresses.</em>
<a name="213" href="#213">213</a> <em class="jxr_javadoccomment">	 * </em>
<a name="214" href="#214">214</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="215" href="#215">215</a> <em class="jxr_javadoccomment">	 */</em>
<a name="216" href="#216">216</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isLinkLocalAddress() {
<a name="217" href="#217">217</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="218" href="#218">218</a> 	}
<a name="219" href="#219">219</a> 
<a name="220" href="#220">220</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="221" href="#221">221</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a site local address.</em>
<a name="222" href="#222">222</a> <em class="jxr_javadoccomment">	 * </em>
<a name="223" href="#223">223</a> <em class="jxr_javadoccomment">	 * Valid IPv6 link local addresses are FEC0::0 through to</em>
<a name="224" href="#224">224</a> <em class="jxr_javadoccomment">	 * FEFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF</em>
<a name="225" href="#225">225</a> <em class="jxr_javadoccomment">	 * </em>
<a name="226" href="#226">226</a> <em class="jxr_javadoccomment">	 * There are no valid IPv4 site local addresses.</em>
<a name="227" href="#227">227</a> <em class="jxr_javadoccomment">	 * </em>
<a name="228" href="#228">228</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="229" href="#229">229</a> <em class="jxr_javadoccomment">	 */</em>
<a name="230" href="#230">230</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isSiteLocalAddress() {
<a name="231" href="#231">231</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="232" href="#232">232</a> 	}
<a name="233" href="#233">233</a> 
<a name="234" href="#234">234</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="235" href="#235">235</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a global multicast address.</em>
<a name="236" href="#236">236</a> <em class="jxr_javadoccomment">	 * </em>
<a name="237" href="#237">237</a> <em class="jxr_javadoccomment">	 * Valid IPv6 link global multicast addresses are FFxE:/112 where x is a set</em>
<a name="238" href="#238">238</a> <em class="jxr_javadoccomment">	 * of flags, and the additional 112 bits make up the global multicast</em>
<a name="239" href="#239">239</a> <em class="jxr_javadoccomment">	 * address space</em>
<a name="240" href="#240">240</a> <em class="jxr_javadoccomment">	 * </em>
<a name="241" href="#241">241</a> <em class="jxr_javadoccomment">	 * Valid IPv4 global multicast addresses are between: 224.0.1.0 to</em>
<a name="242" href="#242">242</a> <em class="jxr_javadoccomment">	 * 238.255.255.255</em>
<a name="243" href="#243">243</a> <em class="jxr_javadoccomment">	 * </em>
<a name="244" href="#244">244</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="245" href="#245">245</a> <em class="jxr_javadoccomment">	 */</em>
<a name="246" href="#246">246</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMCGlobal() {
<a name="247" href="#247">247</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="248" href="#248">248</a> 	}
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="251" href="#251">251</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a node local multicast address.</em>
<a name="252" href="#252">252</a> <em class="jxr_javadoccomment">	 * </em>
<a name="253" href="#253">253</a> <em class="jxr_javadoccomment">	 * Valid IPv6 node local multicast addresses are FFx1:/112 where x is a set</em>
<a name="254" href="#254">254</a> <em class="jxr_javadoccomment">	 * of flags, and the additional 112 bits make up the node local multicast</em>
<a name="255" href="#255">255</a> <em class="jxr_javadoccomment">	 * address space</em>
<a name="256" href="#256">256</a> <em class="jxr_javadoccomment">	 * </em>
<a name="257" href="#257">257</a> <em class="jxr_javadoccomment">	 * There are no valid IPv4 node local multicast addresses.</em>
<a name="258" href="#258">258</a> <em class="jxr_javadoccomment">	 * </em>
<a name="259" href="#259">259</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="260" href="#260">260</a> <em class="jxr_javadoccomment">	 */</em>
<a name="261" href="#261">261</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMCNodeLocal() {
<a name="262" href="#262">262</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="263" href="#263">263</a> 	}
<a name="264" href="#264">264</a> 
<a name="265" href="#265">265</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="266" href="#266">266</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a link local multicast address.</em>
<a name="267" href="#267">267</a> <em class="jxr_javadoccomment">	 * </em>
<a name="268" href="#268">268</a> <em class="jxr_javadoccomment">	 * Valid IPv6 link local multicast addresses are FFx2:/112 where x is a set</em>
<a name="269" href="#269">269</a> <em class="jxr_javadoccomment">	 * of flags, and the additional 112 bits make up the node local multicast</em>
<a name="270" href="#270">270</a> <em class="jxr_javadoccomment">	 * address space</em>
<a name="271" href="#271">271</a> <em class="jxr_javadoccomment">	 * </em>
<a name="272" href="#272">272</a> <em class="jxr_javadoccomment">	 * Valid IPv4 link-local addresses are between: 224.0.0.0 to 224.0.0.255</em>
<a name="273" href="#273">273</a> <em class="jxr_javadoccomment">	 * </em>
<a name="274" href="#274">274</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="275" href="#275">275</a> <em class="jxr_javadoccomment">	 */</em>
<a name="276" href="#276">276</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMCLinkLocal() {
<a name="277" href="#277">277</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="278" href="#278">278</a> 	}
<a name="279" href="#279">279</a> 
<a name="280" href="#280">280</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="281" href="#281">281</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a site local multicast address.</em>
<a name="282" href="#282">282</a> <em class="jxr_javadoccomment">	 * </em>
<a name="283" href="#283">283</a> <em class="jxr_javadoccomment">	 * Valid IPv6 site local multicast addresses are FFx5:/112 where x is a set</em>
<a name="284" href="#284">284</a> <em class="jxr_javadoccomment">	 * of flags, and the additional 112 bits make up the node local multicast</em>
<a name="285" href="#285">285</a> <em class="jxr_javadoccomment">	 * address space</em>
<a name="286" href="#286">286</a> <em class="jxr_javadoccomment">	 * </em>
<a name="287" href="#287">287</a> <em class="jxr_javadoccomment">	 * Valid IPv4 site-local addresses are between: 239.252.0.0 to</em>
<a name="288" href="#288">288</a> <em class="jxr_javadoccomment">	 * 239.255.255.255</em>
<a name="289" href="#289">289</a> <em class="jxr_javadoccomment">	 * </em>
<a name="290" href="#290">290</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="291" href="#291">291</a> <em class="jxr_javadoccomment">	 */</em>
<a name="292" href="#292">292</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMCSiteLocal() {
<a name="293" href="#293">293</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="294" href="#294">294</a> 	}
<a name="295" href="#295">295</a> 
<a name="296" href="#296">296</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="297" href="#297">297</a> <em class="jxr_javadoccomment">	 * Answers true if the address is a organization local multicast address.</em>
<a name="298" href="#298">298</a> <em class="jxr_javadoccomment">	 * </em>
<a name="299" href="#299">299</a> <em class="jxr_javadoccomment">	 * Valid IPv6 organization local multicast addresses are FFx8:/112 where x</em>
<a name="300" href="#300">300</a> <em class="jxr_javadoccomment">	 * is a set of flags, and the additional 112 bits make up the node local</em>
<a name="301" href="#301">301</a> <em class="jxr_javadoccomment">	 * multicast address space</em>
<a name="302" href="#302">302</a> <em class="jxr_javadoccomment">	 * </em>
<a name="303" href="#303">303</a> <em class="jxr_javadoccomment">	 * Valid IPv4 organization-local addresses are between: 239.192.0.0 to</em>
<a name="304" href="#304">304</a> <em class="jxr_javadoccomment">	 * 239.251.255.255</em>
<a name="305" href="#305">305</a> <em class="jxr_javadoccomment">	 * </em>
<a name="306" href="#306">306</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="307" href="#307">307</a> <em class="jxr_javadoccomment">	 */</em>
<a name="308" href="#308">308</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isMCOrgLocal() {
<a name="309" href="#309">309</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="310" href="#310">310</a> 	}
<a name="311" href="#311">311</a> 
<a name="312" href="#312">312</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="313" href="#313">313</a> <em class="jxr_javadoccomment">	 * Method isAnyLocalAddress.</em>
<a name="314" href="#314">314</a> <em class="jxr_javadoccomment">	 * </em>
<a name="315" href="#315">315</a> <em class="jxr_javadoccomment">	 * @return boolean</em>
<a name="316" href="#316">316</a> <em class="jxr_javadoccomment">	 */</em>
<a name="317" href="#317">317</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isAnyLocalAddress() {
<a name="318" href="#318">318</a> 		<strong class="jxr_keyword">return</strong> false;
<a name="319" href="#319">319</a> 	}
<a name="320" href="#320">320</a> 	
<a name="321" href="#321">321</a> 	   
<a name="322" href="#322">322</a>     <em class="jxr_javadoccomment">/**</em>
<a name="323" href="#323">323</a> <em class="jxr_javadoccomment">     * Tries to see if the InetAddress is reachable. This method first tries to</em>
<a name="324" href="#324">324</a> <em class="jxr_javadoccomment">     * use ICMP(ICMP ECHO REQUEST). When first step fails, the TCP connection on</em>
<a name="325" href="#325">325</a> <em class="jxr_javadoccomment">     * port 7 (Echo) shall be lauched.</em>
<a name="326" href="#326">326</a> <em class="jxr_javadoccomment">     * </em>
<a name="327" href="#327">327</a> <em class="jxr_javadoccomment">     * @param timeout</em>
<a name="328" href="#328">328</a> <em class="jxr_javadoccomment">     *            timeout in milliseconds</em>
<a name="329" href="#329">329</a> <em class="jxr_javadoccomment">     * @return true if address is reachable</em>
<a name="330" href="#330">330</a> <em class="jxr_javadoccomment">     * @throws IOException</em>
<a name="331" href="#331">331</a> <em class="jxr_javadoccomment">     *             if I/O operation meets error</em>
<a name="332" href="#332">332</a> <em class="jxr_javadoccomment">     * @throws IllegalArgumentException</em>
<a name="333" href="#333">333</a> <em class="jxr_javadoccomment">     *             if timeout is less than zero</em>
<a name="334" href="#334">334</a> <em class="jxr_javadoccomment">     */</em>
<a name="335" href="#335">335</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isReachable(<strong class="jxr_keyword">int</strong> timeout) <strong class="jxr_keyword">throws</strong> IOException {
<a name="336" href="#336">336</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="337" href="#337">337</a>     }
<a name="338" href="#338">338</a> 
<a name="339" href="#339">339</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="340" href="#340">340</a> <em class="jxr_javadoccomment">	 * Answers the InetAddress corresponding to the array of bytes. In the case</em>
<a name="341" href="#341">341</a> <em class="jxr_javadoccomment">	 * of an IPv4 address there must be exactly 4 bytes and for IPv6 exactly 16</em>
<a name="342" href="#342">342</a> <em class="jxr_javadoccomment">	 * bytes. If not, an UnknownHostException is thrown.</em>
<a name="343" href="#343">343</a> <em class="jxr_javadoccomment">	 * </em>
<a name="344" href="#344">344</a> <em class="jxr_javadoccomment">	 * The IP address is not validated by a name service.</em>
<a name="345" href="#345">345</a> <em class="jxr_javadoccomment">	 * </em>
<a name="346" href="#346">346</a> <em class="jxr_javadoccomment">	 * The high order byte is &lt;code&gt;ipAddress[0]&lt;/code&gt;.</em>
<a name="347" href="#347">347</a> <em class="jxr_javadoccomment">	 *</em>
<a name="348" href="#348">348</a> <em class="jxr_javadoccomment">	 * @param 		ipAddress	either a 4 (IPv4) or 16 (IPv6) byte array</em>
<a name="349" href="#349">349</a> <em class="jxr_javadoccomment">	 * @return 		the InetAddress</em>
<a name="350" href="#350">350</a> <em class="jxr_javadoccomment">	 *</em>
<a name="351" href="#351">351</a> <em class="jxr_javadoccomment">	 * @throws		UnknownHostException</em>
<a name="352" href="#352">352</a> <em class="jxr_javadoccomment">	 */</em>
<a name="353" href="#353">353</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/net/InetAddress.html">InetAddress</a> getByAddress(byte[] ipAddress)
<a name="354" href="#354">354</a> 			<strong class="jxr_keyword">throws</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a> {
<a name="355" href="#355">355</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="356" href="#356">356</a> 	}
<a name="357" href="#357">357</a> 
<a name="358" href="#358">358</a> 	<em class="jxr_javadoccomment">/**</em>
<a name="359" href="#359">359</a> <em class="jxr_javadoccomment">	 * Answers the InetAddress corresponding to the array of bytes, and the</em>
<a name="360" href="#360">360</a> <em class="jxr_javadoccomment">	 * given hostname. In the case of an IPv4 address there must be exactly 4</em>
<a name="361" href="#361">361</a> <em class="jxr_javadoccomment">	 * bytes and for IPv6 exactly 16 bytes. If not, an UnknownHostException is</em>
<a name="362" href="#362">362</a> <em class="jxr_javadoccomment">	 * thrown.</em>
<a name="363" href="#363">363</a> <em class="jxr_javadoccomment">	 * </em>
<a name="364" href="#364">364</a> <em class="jxr_javadoccomment">	 * The host name and IP address are not validated.</em>
<a name="365" href="#365">365</a> <em class="jxr_javadoccomment">	 * </em>
<a name="366" href="#366">366</a> <em class="jxr_javadoccomment">	 * The hostname either be a machine alias or a valid IPv6 or IPv4 address</em>
<a name="367" href="#367">367</a> <em class="jxr_javadoccomment">	 * format.</em>
<a name="368" href="#368">368</a> <em class="jxr_javadoccomment">	 * </em>
<a name="369" href="#369">369</a> <em class="jxr_javadoccomment">	 * The high order byte is &lt;code&gt;ipAddress[0]&lt;/code&gt;.</em>
<a name="370" href="#370">370</a> <em class="jxr_javadoccomment">	 *</em>
<a name="371" href="#371">371</a> <em class="jxr_javadoccomment">	 * @param 		hostName	string representation of hostname or ip address</em>
<a name="372" href="#372">372</a> <em class="jxr_javadoccomment">	 * @param 		ipAddress	either a 4 (IPv4) or 16 (IPv6) byte array</em>
<a name="373" href="#373">373</a> <em class="jxr_javadoccomment">	 * @return 		the InetAddress</em>
<a name="374" href="#374">374</a> <em class="jxr_javadoccomment">	 *</em>
<a name="375" href="#375">375</a> <em class="jxr_javadoccomment">	 * @throws 		UnknownHostException</em>
<a name="376" href="#376">376</a> <em class="jxr_javadoccomment">	 */</em>
<a name="377" href="#377">377</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/net/InetAddress.html">InetAddress</a> getByAddress(String hostName, byte[] ipAddress)
<a name="378" href="#378">378</a> 			<strong class="jxr_keyword">throws</strong> <a href="../../java/net/UnknownHostException.html">UnknownHostException</a> {
<a name="379" href="#379">379</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="380" href="#380">380</a> 	}
<a name="381" href="#381">381</a> }
</pre>
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